User manual

Raisecom Technology Co., Ltd
7
4. How to use
4.1. Introduction of front panel
RCMS2504-120 front panel
4.1.1. Power indicator
Power indicator（Green）：If power is in good condition, it is ON
4.1.2. Alarm indicator
z GL: general alarm
GL general alarm indicator (red): If a certain alarm occurs at local end, GL indicator is ON.
If a certain alarm occurs at remote end, GL indicator is
flashing.
z Optical interface alarm (include local and remote end: L: local end, R: remote end)
LOS (red): If lose receiving optical signal, alarm is ON.
LOF (red): If lose receiving optical frame, alarm is ON.
E-3 (red): If optical receiving signal bit error exceeds 10
-3
, alarm is ON.
E-6 (yellow): If optical receiving signal bit error exceeds 10
-6
, alarm is ON.
z E1 loss: (include local and remote end: L: local end, R: remote end)
LOS1~4 (red): If E1 branch lose receiving signal, alarm of relevant branch is ON
z Ethernet indicator: (4 links indicator correspond to 4 Ethernet ports)
LNK/ACT (green): If connection is normal, alarm is ON. If receive or transmit data, alarm is
flashing.
100M (green): 100Mbps: ON, 10Mbps, OFF
FDX/COL (green): alarm is ON under full duplex mode and OFF under half duplex mode
4.1.3. Switch configuration of front panel: default setting is OFF
1 2 3 4 5 6
OFF
ON 1 2 3 4 5 6 7 8